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Cheap flights from Phoenix Sky Harbor Intl Airport to Denver from £68

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — DEN
27 Apr — 4 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Sky Harbor Intl to Denver

Enter your travel dates to find the best prices.

Cheapest flights from Sky Harbor Intl to Denver
Explore the most affordable flight options available from Sky Harbor Intl to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2026.

Thu 16/411:05
PHX
-
DEN
Nonstop1h 45m
Southwest
Mon 20/408:40
DEN
-
PHX
Nonstop2h 00m
Southwest
Deal found 26/3£135
Sat 18/409:45
PHX
-
DEN
1 stop3h 15m
Southwest
Tue 21/419:50
DEN
-
PHX
Nonstop2h 00m
Southwest
Deal found 26/3£139
Tue 21/408:45
PHX
-
DEN
1 stop4h 10m
Southwest
Wed 22/414:45
DEN
-
PHX
1 stop3h 45m
Southwest
Deal found 26/3£146
Sat 18/406:05
PHX
-
DEN
1 stop4h 27m
Delta
Sat 9/518:19
DEN
-
PHX
1 stop4h 02m
Delta
Deal found 26/3£150
Wed 12/815:13
PHX
-
DEN
1 stop7h 20m
Alaska Airlines
Sat 15/806:00
DEN
-
PHX
1 stop7h 23m
Alaska Airlines
Deal found 23/3£151
Tue 9/617:07
PHX
-
DEN
1 stop4h 34m
Delta
Wed 10/619:16
DEN
-
PHX
1 stop5h 43m
Delta
Deal found 23/3£156
Tue 5/516:40
PHX
-
DEN
1 stop5h 39m
Delta
Tue 19/512:35
DEN
-
PHX
1 stop4h 24m
Delta
Deal found 28/3£163
Tue 14/415:21
PHX
-
DEN
1 stop7h 23m
Alaska Airlines
Wed 22/413:02
DEN
-
PHX
1 stop6h 24m
Alaska Airlines
Deal found 25/3£164
Tue 14/415:21
PHX
-
DEN
1 stop7h 23m
Alaska Airlines
Wed 6/513:02
DEN
-
PHX
1 stop6h 24m
Alaska Airlines
Deal found 26/3£165
Thu 28/517:16
PHX
-
DEN
1 stop4h 24m
Delta
Tue 9/605:40
DEN
-
PHX
1 stop4h 09m
Delta
Deal found 24/3£166

Find flight deals from Sky Harbor Intl to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 March 2026.

Round-trip from

£135

One-way from

£68

Popular in

June

Cheapest in

February

Average price

£144

Good one-way deal

£135 or less
United Airlines
  • United Airlines
  • 23/4-27/4
  • Nonstop
  • 3h 58m total
  • Phoenix to Denver
Search Deals
United Airlines
  • United Airlines
  • 16/4
  • Nonstop
  • 1h 55m total
  • Phoenix to Denver
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£10 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Denver Intl.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sky Harbor Intl to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 28 March 2026.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 23/4

05:45-11:05

1 stop4h 20m

Denver Intl

Mon 27/4

19:40-23:10

1 stop4h 30m

£150

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Wed 12/8

15:13-23:33

1 stop7h 20m

Denver Intl

Sat 15/8

06:00-12:23

1 stop7h 23m

£151

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 21/4

08:45-13:55

1 stop4h 10m

Denver Intl

Wed 22/4

08:55-14:00

2 stops6h 05m

£183

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sat 16/5

16:20-22:05

1 stop4h 45m

Denver Intl

Tue 19/5

08:55-14:00

2 stops6h 05m

£187

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 16/4

12:10-17:55

1 stop4h 45m

Denver Intl

Mon 20/4

18:51-23:14

1 stop5h 23m

£194

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Tue 14/4

11:00-15:05

1 stop3h 05m

Denver Intl

Tue 21/4

08:55-14:00

2 stops6h 05m

£208

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Mon 1/6

10:30-14:55

1 stop3h 25m

Denver Intl

Tue 30/6

09:35-14:50

2 stops6h 15m

£217

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Sat 11/4

07:50-12:10

1 stop3h 20m

Denver Intl

Tue 14/4

08:55-14:00

2 stops6h 05m

£219

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Thu 16/4

08:05-13:25

1 stop4h 20m

Denver Intl

Mon 20/4

12:55-18:10

2 stops6h 15m

£220
Fastest return journey

PhoenixDenver

PHX - DEN

PHXDEN

Phoenix Sky Harbor Intl

Fri 11/9

09:15-12:10

Nonstop1h 55m

Denver Intl

Sat 12/9

12:00-14:50

1 stop3h 50m

£223

Flights are sorted by cheapest return flights first.

Deals found on 23/3

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Sky Harbor Intl to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Sky Harbor Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phoenix Sky Harbor Intl Airport to Denver

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Denver?

Use this chart to determine the optimal time to book a return flight from Sky Harbor Intl to Denver. Price data was last updated on 13 March 2026.

To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to Denver, you should look to book at least 69 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Denver?

Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Denver (average of £44). Flying from Phoenix Sky Harbor Intl Airport to Denver in July is currently the most expensive (average of £77). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHX to DEN?

Find hourly flight availability from Sky Harbor Intl to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 March 2026.

Unlike at midday, when flights are generally more expensive, you can save up to 83% on flights from Phoenix Sky Harbor Intl Airport to Denver by exploring options for tickets in the afternoon.

How much does it cost for a return flight from Phoenix Sky Harbor Intl Airport to Denver?

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Denver from Phoenix Sky Harbor Intl?

    For a flight from Phoenix Sky Harbor Intl to Denver, you will be flying into Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 38 inbound flights from Phoenix Sky Harbor Intl per day. 0 airlines have flights to Denver Intl from Phoenix Sky Harbor Intl on a regular basis.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Denver?

    There are many flights that can get you from Phoenix Sky Harbor Intl Airport to Denver in 4h 20m. Fly via Southwest, Alaska Airlines, or Delta to get the fastest option. The distance between Phoenix Sky Harbor Intl Airport and Denver is about 601 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Denver?

    Consider Lufthansa (91%), Air Canada (86%) or Envoy Air (84%) when booking your flight. These represent the most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Denver.

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Denver?

    While on average a flight from Phoenix Sky Harbor Intl Airport to Denver is generally £135, our data shows the cheapest flight currently is £135. When looking at the most popular route, (Phoenix Sky Harbor Intl - Denver Intl), you can expect to pay £184 for that flight.

  • Can I find deals for flights from Sky Harbor Intl to Denver that include hotel bookings?

    Yes. In addition to deals on Sky Harbor Intl to Denver flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sky Harbor Intl to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Denver.

  • Can I find deals for business class flights from Sky Harbor Intl to Denver?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Denver?

    Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Denver (average of £44). Flying from Phoenix Sky Harbor Intl Airport to Denver in July is currently the most expensive (average of £77). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Why should you use Cheapflights to find cheap flight tickets from Sky Harbor Intl to Denver?

Millions of users choose and trust Cheapflights to book the best flight deals from Sky Harbor Intl to Denver for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Sky Harbor Intl to Denver with no change fees?

Yes, we can. To see specific flights from Sky Harbor Intl to Denver with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Sky Harbor Intl to Denver become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Denver from Sky Harbor Intl today and book when prices fit your budget.

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